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Blockhopper (275, rev. 20)
By  KingYoshi on 02-01-16, 06:32 pm
Category 'Enemies - Desert', known, fully documented
A value of 5 (which is unused) for nybble 9 will yield different results for each region :
US : Starman
JP : Flower
EU : Mini-mushroom
KS : Blue shell
CH : Mushroom/flower
Data files:
• /enemy/gorem_body.nsbmd
• /enemy/gorem_head.nsbmd
• /enemy/gorem_head1.nsbmd
Sprite fields:
Item: list at nybble 9: 0=Nothing,1=Coin,2=Mushroom/Flower,3=1-Up,4=Coin,5=[See comment],6=Coin,7=Mushroom/Flower,8=Mushroom/Flower,9=Mushroom (weird),10=Mushroom,11=Coin,12=Mushroom/Flower,13=Mushroom/Flower,14=Flower,15=Coin. 5=Star (weird) [US]; Flower [JP]; Mini Mushroom [EU]; Blue Shell [KS]; Mushroom/Flower [CH]. 0, 4 and 5 are unused.
Brick Head: checkbox at nybble 10 with mask 1. Makes Blockhopper a bit like the Pile Driver Micro-Goombas in SMB3. Same behaviour as far as I can tell. Unused.
Height: value at nybble 11. Higher values will slow down the game. There is a limit, of something.
Blockhopper (275, rev. 21)
By  Hiccup on 11-27-18, 04:40 pm
Category 'Enemies - Desert', known, fully documented
A value of 5 (which is unused) for nybble 9 will yield different results for each region due to a glitch:
US : Starman
JP : Flower
EU : Mini-mushroom
KS : Blue shell
CH : Mushroom/flower
Data files:
• /enemy/gorem_body.nsbmd
• /enemy/gorem_head.nsbmd
• /enemy/gorem_head1.nsbmd
Sprite fields:
Item: list at nybble 9: 0=Nothing,1=Coin,2=Mushroom/Flower,3=1-Up,4=Coin,5=[See comment],6=Coin,7=Mushroom/Flower,8=Mushroom/Flower,9=Mushroom (weird),10=Mushroom,11=Coin,12=Mushroom/Flower,13=Mushroom/Flower,14=Flower,15=Coin. 5=Star (weird) [US]; Flower [JP]; Mini Mushroom [EU]; Blue Shell [KS]; Mushroom/Flower [CH]. 0, 4 and 5 are unused.
Brick Head: checkbox at nybble 10 with mask 1. Makes Blockhopper a bit like the Pile Driver Micro-Goombas in SMB3. Same behaviour as far as I can tell. Unused.
Height: value at nybble 11. Higher values will slow down the game. There is a limit, of something.