Infinite health:
8010F292 0063
8010F293 0063

80227B88 - write to health after taking damage
80227B44 - sum of new health, S0 is damage deducted
80277854 - load damage into S0
8027CD48 - stores damage at DC1EC
8027CD40 - jumps to command which collects damage value, from A1 into V0
802C7D84 - determines if the enemy will walk back to their original position
80311627 0001 - partner is an image from the area
741a0 - scale of background in battle
78180 - speed regulator thing

CHECKSUM REMOVAL:
0x658: NOP

//MAIN CODE
0x1AB5F4:
DADDU A0, S3, R0
DADDU S2, V0, R0
SW V1, $0188 (S1)
LW V1, $0004 (S0)
SW V1, $018C (S1)
LW V1, $0008 (S0)
SW V1, $0190 (S1)
LW A1, $000C (S0)
JAL $002C7ABC
ADDIU S0, S0, $0010
ADDIU S5, R0, $0002
DIVU V0, S5 {0055001B}
MFLO S5
ADD V0, V0, S5
SH V0, $017E (S1)
LW A1, $0000 (S0)
ANDI A0, A1, $0010
ADDIU V1, R0, $FFDF
LW V0, $0000 (S1)
BNEZ A0, $001AB670
ORI V0, V0, $0010

DOUBLE VERSION:
LUI T8, $8011
LB T8, $F2AC (T8)
BEQ T8, R0, $SKIP