Ambient lighting underwater probably made even fast computers of that day go extremely slow - maybe 10, 20, or 30 FPS at the most, which sucks for a fast paced game like JJ2. CliffyB is too lazy to make a patch that features things that were taken out due to stuff like this. Having more than 100 ammo is a bug, and it is present in v1.21. I have that on my laptop, and sometimes when you get a powerup, specifically kicking it, you exceed 100, but it goes right back down after firing a bit. I think that kicking and uppercutting powerups is a bug, and I will make a topic about it soon.