I used Super Fury as well and the game crashes. I usualy don't use it and as you guys have so much problems with it I gave it a try. So with my the game crashes even if I activate and deactivate it.
For health and ammo option no crash occured so far!
But I also recognized that the trainer options get deactivates several time and that you have to activate them again. The health option is good but you still take a lot of damage esp. with explosions or boss enemies.
But anyways great work and very fast! Perhaps it's possible to improve the trainer a bit so that it works more smoothly
I finished the game ok,I just quit using the fury option.With the last ingame fury upgrade and unlimited ammo it wasn't hard to gain and keep your Fury Full.