Changes in Rockman EXE Operate Shooting Star

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These are the changes made from the original GBA Mega Man Battle Network 1 and Rockman EXE Operate Shooting Star.

Aesthetics

• The manual retcons the year the game takes place from 200X to 20XX.
• An intro was added before the title screen.
• The menu was retooled for the DS screen.
• The dialogue textbox’s arrow has been changed.
• Battle Network 1 mugshots have been updated with a new palette and some clean up. Lan, MegaMan, Mayl, Roll, Dex, Yai, Chaud, ProtoMan, and Harp Note are newly drawn. Luna's mugshot has been slightly updated.

• All areas in the game are now properly named, with Undernet properly labeled. (This also means the area names do not match up with old EXE1 guidebooks)

EXE1 Guidebook	OSS
Internet 1-4	Internet 1-4
Internet 5-16	Undernet 1-12

• Voice acting is added.
• The Non-elemental chip icon has been updated to the ones from Rockman EXE 2 and later. This change was already implemented in the NA/EU version of BN1.
• Some cutscenes that pan across the map now has the textbox appear during the panning instead of after.
• The pointing arrows in the tutorial now make sound.

Text

Some game text were altered. Many typos were fixed up.

• In Chapter 1, Lan’s mom was making hotcakes in BN1 but was changed into apple pie in OSS.

Gameplay

• The save data can be re-initialized (i.e. delete the save) by holding down B Button, X Button, and Select Button at the same time before the CAPCOM screen.
• Running is default. Holding the B Button makes you walk.
• Jack in sequence can be skipped with Start.
• You are forced to save before fighting the final bosses. This avoids a problem in the original game where you could get permanently stuck by saving on the cutscene trigger for the final fights.
• GutsMan * can be obtained via Title Screen button input (Up, X, Left, Y, Right, A, Down, B). It cannot be traded to other players.
• When viewing an item description in a shop, pressing Up/Down now closes it. Additionally, the shopkeeper's text now appears instantly after closing an item description.
• The Chip Trader now automatically sorts your chip pack by quantity.

Rock Colo (Rockman Star Colosseum)

• A new mini game mode available at the title screen where you fight your friends for points or join together to take down Bass, all takes place in an overworld map. You can use the points you gained to buy chips from a Navi in Lan's HP. Bass can be unlocked as a playable character after 50 matches.
• Only VS Bass is available for single player play. The multiplayer modes require only one Game Pak and DS Download Play.

Battle System Changes

• Folder limits change:

BN1	OSS
Max 10 of any non-Navi chips	Max 5 of any non-Navi chips
Max 5 of any Navi chips	5 Navi chip limit, but only 1 of each chip

• From later games, the * code has been added to select chips. Also like later games, some Program Advances can use * code as replacement of its materials.
• In Folder editing, Select lets you return all your chips from the folder back to the sack.
• L button give you the chance to run from the battle.
• Select lets you remove the Custom Screen and see the battlefield.
• Screen-dimming chips now apply their damage before the screen is undimmed, unlike in BN1, where damage is applied after. Some chips apply damage in real-time, whereas others only apply total damage after the final hit. However, in both cases, enemies are visibly impacted in real-time.
• You can now see chip codes in the Custom Screen without highlighting the chip with the cursor.
  • As a result, the Custom Screen size has been reduced from 15 chips to 10 chips.
• Numb status effect now damages MegaMan when he moves every 3 panels instead of every 1 panel.
• MegaMan's flinch requirement now needs 10 HP of damage instead of 1 HP.

Network

• Communications now use Host and Client system. Time-out for connecting with opponent is longer.
• Screen Dimming Cut In from MMBN4 and later is added in. However, you cannot see the chip above your head while the opponent is using a dimming chip.
• There is now a 15 turn limit. You can see the turn count down in the Custom Screen.
  • Final Match mechanic replaces Max Mode.
  • If there are no more turns; when the Custom Screen is opened, Final Match occurs instead. Both players' HP becomes 400, MegaMan does not flinch from the Charge Shot, Buster stats becomes 6, chip selection is erased, all obstacles on the field are destroyed, any defense are removed, match cannot be paused, and the Custom Gauge is no longer active.

Mega Man Star Force

• Armor system is removed in place of the ability to switch MegaMan. Because of this, library completion is required to obtain Lv.100.
• During the ClockMan Scenario, you obtain the ability to switch between EXE and MMSF. After the scenario, MMSF will only be playable in battle and the Humor-esque program remains.
• Your buster auto-charges and only have one charge (half the strength of EXE's max charge). The X Button lets you lock-on for a Mega Attack with certain chips. The Y Button lets you put up a shield. If you are hit while in a Mega Attack, you are flinched for an extended time.
• In the internet, the virus BGM becomes Ride On from MMSF1 and the boss BGM becomes Wave Battle from MMSF2.

Field Screen

• Random encounter rates are decreased in all areas.
• Waterworks Comp 5 has some melted panels that tells you where to slide, and the Mr. Progs' hints are more detailed. Additionally, no viruses ever appear. (In BN1, the encounter rate was lower than normal.)

• Power Plant Comp has flashing lights to indicate paths. Power switch sprite is updated. Batteries now have unlimited charge, Mr. Prog just gives advice.

• The virus machine in Dad's PC Comp was changed. In BN1, it would give a random virus from any completed dungeon; in OSS, it will instead give a random virus from the next dungeon only.

Reward Code Changes

• The E-Mail from Dad now gives CrossGun * instead of CrossGun C.
• The trade at Den Block 3 now gives Recov300 L instead of Recov300 C.
• The quest with the NPC at the ACDC Metroline now gives Recov80 * instead of Recov80 G.

Mystery Data

Some contents of random Mystery Data on the Internet have been tweaked. As in BN1, the color of Mystery Data does not indicate whether it's random (respawns) or fixed (one time only).

• Shotgun, MiniBomb, Recov10 and Recov30 are now * code when obtained from random Mystery Data on the Internet.
• Most other Recov chips were replaced by different codes.
• Due to a bug, 10000 Zennys no longer drops from random Mystery Data in Undernet 10; the most Zennys you can get from random Mystery Data in Undernet 10 is now 30z.
• In BN1, if you picked up a respawning Mystery Data in a HomePage containing a chip that you already have, MegaMan would be unable to decode the data. In OSS, the Mystery Data instead stops respawning until you trade away all copies of that chip.

Enemies

For some late game enemies, their attack power was tweaked to account for the removal of the armor system.

General changes

• New bosses: Mega Man SF, ClockMan. ClockMan V2 and V3 can be encountered in Undernet 9.
• Swordy3 now has 150 HP instead of 200 HP.
• IceMan's IceCubes now have 50 HP instead of 100 HP.
• SharkMan's Fin attack is now slower, and does 80 damage instead of 120.

Version	EXE1	OSS
SharkMan V1	5 pixels/frame	3 pixels/frame
SharkMan V2	7 pixels/frame	5 pixels/frame
SharkMan V3	9 pixels/frame	7 pixels/frame

• The LifeVirus battlefield no longer has lines on the panels.
• LifeVirus disappearing holes glitch have been fixed, they now all disappear.

• PharaohMan's Anubis now drains HP at a rate of 1 HP every 8 frames, instead of 1 HP every 2 frames - just like the Anubis BattleChip.
• Bass's HP now has 1500 HP instead of 1000 HP, and his flinch requirement is now 180 damage instead of 100 damage. His aura now disappears when he charges his attack instead of after.
• Most bosses which did not have contact damage set in GBA, now do 50 damage on contact, likely to account for Mega Man SF's Mega Attack. This includes FireMan, ColorMan, BombMan, PharaohMan, ShadowMan and Bass.
  • However, IceMan, MagicMan and LifeVirus still do 0 contact damage.

Enemy attack power changes

Enemy	Attack	EXE1	OSS
Flappy3	Quake3	100	60
Fishy2	Rush	100	60
Cloudy2	Cloudier	80	60
Cloudy3	Cloudest	120	80
Jelly	Wave	200	100
HeatJelly	RedWave	200	100
BigJelly	BigWave	300	150
Gaia	Gaia1	200	100
Gaia2	Gaia2	300	150
Gaia3	Gaia3	400	200
Popper	WoodTower	100	50
Popper2	WoodTower	140	70
Popper3	WoodTower	180	90
Satella	Lockon1	60	30
Satella2	Lockon2	100	50
Satella3	Lockon3	160	80
Billy	Thunder1	100	70
Billy2	Thunder2	140	110
Billy3	Thunder3	180	150
Megalian	FaceAttack	100	50
Megalian2	FaceAttack	160	80
Megalian3	FaceAttack	240	120
CanDevil	Fireball	100	50
CanDevil2	Fireball	150	75
CanDevil3	Fireball	200	100
Poitton	Dynamyte1	200	100
Poitton2	Dynamyte2	200	100
Poitton3	Dynamyte3	200	100
SkullMan V1	Ghost Fire	80	50
	BoneCrush	80	50
SharkMan V1, V2, V3	Fin	120	80
ProtoMan V1, V2, V3	LongSword	200	100
	WideSword	200	100
MagicMan V1	MagicFire	160	80
MagicMan V2	MagicFire	160	120
LifeVirus	Sword	200	150
	Laser	200	100
	Meteor	200	100
ShadowMan V1, SP	Shuriken	200	150
	Bakufu	200	100
Bass	AirBurst	200	150
	Explosion (all variants)	300	200

Drop rates

Drop rates for enemies were changed. Notably, you no longer need a Busting LV. S in order to get chips like LeafShld and Dropdown, which were very hard to get from a battle in MMBN1.

General changes

• Busting LV. 4 now consistently drops slightly better rewards.
• Enemies that drop chips no longer drop Zennys at Busting LV. S.
• It is now significantly easier to get the best chip drop from enemies. The best chip can now drop starting from LV. 8 rather than LV. 9.

Enemy-specific changes

• Spooky now drops Recov10 L instead of Recov10 G.
• Spooky2 now drops Recov50 L instead of Recov50 A, and Recov80 L instead of Recov80 A.
• Spooky3 now drops Recov50 C instead of Recov50 E, and Recov150 L instead of Recov150 G, and Recov200 L instead of Recov200 A.
• HardHead drops Howitzer H at lower Busting LVs, and now drops Howitzer C at highest Busting LVs.
• ColdBear now drops IceCube * instead of IceCube L.
• VolGear, VolGear2, Fishy2, Miney, Cloudy1, Cloudy2, Popper, Billy, Billy2, ProgMk1, ProgMk2, Anaconda, Anaconda2 now drop their chips in * code at highest Busting LVs.
• VolGear, Fishy2, Miney, Jelly, HeatJelly, BigJelly, Popper2, Popper3, ProgMk2, ProgMk3, Anaconda2 and Anaconda3 now drop their chips at lower Busting LVs.
• SkullMan now drops SkullMan D instead of SkullMan S (all versions).
• ShadowMan now drops ShadoMan T instead of ShadoMan S (all versions).

BattleChip Changes

• New chips: (176) MegaManSF S, (177) ClockMan C, (178) ClockMan2 C, (179) ClockMan3 C, and event only (181) Rogue B.
  • Bass appears in Undernet12 if you have 178 different chips in your Library (in BN1, you needed 174).
  • Bass F chip number was changed from 176 to 180.
• New Programs Advances:
  • DoubleMegaMan (Barrier * - FtrSword S - BstrSwrd S - MegaManSF S),
  • DoubleHero2 (FtrSword B - KngtSwrd B - HeroSwrd B - Rogue B).
• IronBody lasts for 15 seconds instead of 30 seconds. The damage you receive is reduced to 1/4 (rounded up) instead of 1/8 (rounded up).
• Anubis' drain speed is slower, now it's 1 HP every 8 frames instead 1 HP every 2 frames.
• Steal can't take the back columns. Also, stolen area returns to normal after 3 turns.
• Interrupt only destroys 1 opponent's chip instead of all of them.
• SlowGauge and FastGauge has tick sound effect when the arrow points to the gauge.
• While Roll's chip damage have increased, the HP you heal is still the same as MMBN1.
• MagicMan chips have a 1-in-2 chance to insta-kill viruses; in MMBN1, this was a 1-in-4 chance.
• Bass's attack animation have been sped up.
• PwrCanon now can be used in the L code.
• Time limit PAs have a different "power up" visual effect.
• LifeSavr PA now heals only 500 HP and provides 10 seconds of invisibility, instead of full heal and 30 seconds of invisibility.

Code

Some chip codes have been altered. All * chips can substitute for their Program Advances, e.g. PoweredCannon can now be used with L code.

Chip	MMBN1	EXEOSS
ShotGun	K M N Q R	K M N R *
CrossGun	C E F J K	E F J K *
Bubbler	A K L P S	A K P S *
Heater	C F G K O	F G K O *
MiniBomb	C E J L P	C E J L*
FireTowr	E F L M T	E F M T *
AquaTowr	A C G H R	C G H R *
WoodTowr	B C H K N	B C K N *
Thunder1	A E G H S	A G H S *
Thunder2	B C F I L	C F I L *
RingZap1	G H M N P	G H N P *
RingZap2	C E G J L	C E J L *
Snakegg1	B E G M N	B E M N *
Snakegg2	C E H N P	C E N P *
BodyBurn	E F K M N	E F K M *
X-Panel1	B D G L S	B G L S *
X-Panel3	B D G L S	B G L S *
Hammer	A F I M Q	A F I M *
Recov10	A C E G L	A C E L *
Recov30	A C E G L	B C D L *
Recov50	A C E G L	C L M S *
Recov80	A C E G L	C E L N *
Recov120	A C E G L	F H L R *
Recov150	A C E G L	D K L M O
Recov200	A C E G L	I J L N Q
Recov300	A C E G L	G L O P T
Steal	A E L P S	A E L S *
Geddon1	F H J L N	H J L N *
Geddon2	A B E I K	A B E K Q
Repair	A G H K S	A G H S *
Cloud	B G H O R	B H O R *
Cloudier	A D I M P	A I M P *
Mine1	G H M N P	G H M N *
Mine2	C E G J L	C E J L *
Remobit1	A C F N O	A C N O *
Remobit2	B D E H I	B D E I *
IceCube	A C I L M	A C I M *
RockCube	B E G M O	B G M O *
SloGauge	H K N O Q	Q *
FstGauge	A C E L N	A *
Invis1	I J L O Q	I J L Q *
Barrier	D F M R S	*
GutsMan	G	G *
SkullMan	S	D
SkullMn2	S	D
SkullMn3	S	D
ShadoMan	S	T
ShadoMn2	S	T
ShadoMn3	S	T

Attack Power

Attack power of some chips and Program Advances have been altered. Additionally, PAs that use the original attack power of chips, now use the new attack power.

Chip	BN1	OSS
LongSwrd	80	100
FireSwrd	100	120
ElecSwrd	120	130
GutsPnch	60	160
IcePunch	80	150
Howitzer	150	200
Ratton1	80	90
Ratton2	100	110
Ratton3	120	130
BodyBurn	100	180
Hammer	100	220
Cloud	30	60
Cloudier	50	80
Roll2	80	100
Roll3	100	140
FireMan	100	110
FireMan2	120	140
FireMan3	150	180
IceMan	60	80
IceMan2	80	100
IceMan3	100	120
ColorMan	90	120
ColorMn2	110	140
ColorMn3	130	160
WoodMan	60	70
WoodMan2	80	100
WoodMan3	100	130
SharkMan	90	110
SharkMn2	110	130
SharkMn3	130	150
PharoMan	100	120
PharoMn2	120	140
PharoMn3	140	160
ShadoMan	80	60
ShadoMn2	90	70
ShadoMn3	100	80
BgStrait	250	350
GtsShoot	500	400