Game: Play Bullet Time Ninja, a free online game on Kongregate

Infinite jumps
5d ?? 5d ?? 66 ?? 66 ?? 46 ?? 01 76 2a 76 12 10 00 00
5d ?? 5d ?? 66 ?? 66 ?? 46 ?? 01 76 2a 76 12 00 00 00

Invincible
5d ?? 66 ?? 66 ?? 12 13
47 ?? 66 ?? 66 ?? 12 13

Unlimited bullet time
d0 66 ?? 46 ?? 00 a2 a0
02 02 02 02 24 00 a2 a2

Credits go to "lol wut"