Game Genie codes found for Rolling Thunder 2 (Genesis)

[BigBossman]

I've started messing around with Rolling Thunder 2 & found some codes. Some of these are sort of glitchy. If someone can come up with a permanent fix, then I welcome it. I'll mark them with a "*"

No enemies; stage scenery is set up differently (not visibly)
* CBRA-AYKA
***I've noticed when you get to level 3, where the screen scrolls upward, you'll die before it scrolls back down***

Bullets that hit stay & still kill enemies
* SHDA-ALAG
***Firing too many bullets that hit enemies or objects, will cause the game to automatically reset***

In game text is messed up slightly
HVPA-A0RJ
NOTE: Where it says "Get Ready" & "Pause". This causes "Pause" to look like "Puey". Player & enemies will appear glictchy, but it won't cause the game to freeze.

Start floating upwards when you duck or jump
FDRA-ACNT
NOTE: If you go too far up, you'll die. To drop back down, fire; To stop in air, hold down; To temporarily drop down, jump.

I'll keep working at this & see what I can come up with.

[BigBossman]

A couple more:

Only able to only shoot 1 bullet / flame at a time
RDCA-AFHE
NOTE: Your ammo will still go down even though no bullets or flames are coming out when you try to fire rapidly

Can't stay in a room for very long without exiting
RDRT-AGEL

[BigBossman]

Grenades can't be thrown by enemies (they throw nothing)
SDGA-APCR