Learning to make AoBs here's what I found so far

Inactivate Timer

1c 96 02 00 08 01 4e 96 05 00 07 01 00 00 00 0b 4f
1c 96 02 00 08 01 4e 96 05 00 07 01 00 00 00 02 4f

Invincibility (to all but jelly fish)

1c 96 02 00 08 0a 4e 47 1c 96 05 00 07 c8 00 00 00 0b 1d
1c 96 02 00 08 0a 4e 47 1c 96 05 00 07 c8 00 00 00 02 1d

1c 96 02 00 08 0a 4e 47 1c 96 05 00 07 50 00 00 00 0b 1d
1c 96 02 00 08 0a 4e 47 1c 96 05 00 07 50 00 00 00 02 1d

1c 96 02 00 08 0a 4e 47 1c 96 05 00 07 96 00 00 00 0b 1d
1c 96 02 00 08 0a 4e 47 1c 96 05 00 07 96 00 00 00 02 1d

because the timer is inactivated you have to make the jellyfish kill you to get out of the level (you still pass if you fulfill the level conditions)

if you keep the timer active full invincibility is (should be 4 addresses)

1c 96 02 00 08 0a 4e 47 1c 96 05 00 07 ?? 00 00 00 0b 1d
1c 96 02 00 08 0a 4e 47 1c 96 05 00 07 ?? 00 00 00 02 1d