I suppose I'll post my almost win-worth tips, so I feel like the dull pain in my right wrist amounts to something worthwhile.
Kitty Krew: Meet 'em as they come out and just start whaling on 'em. You can easily get the juggle achievement by doing this. You can also attempt to strafe back when BFK pops out, and if you're luck end up doing the same thing. If not, this boss is hardly a challenge: just avoid the balls, kills his dudes then get up close and personal. If you do the first part right you should score some decent bomb getting points.
AS3: Use the damn jump key! Also, try to get the jump on them: ALWAYS do this. They're not ready for you when they first pop out. Try and single one dude out. If you're lucky you can get a juggling act going on, but don't bank on it.
PsychoG: He's pretty easy. You can often get the minions to nail him with their saws. I found it most reliable to kills of the wee ones then just back PG into a corner and whale on him. Every now and then he gets a quirk where he counters your every hit, if so jump away and come back in.
P-Bot: Try to kill PG near the edge of the game!! It's not hard to get 70+ in this, and when I got 80 I had a good 4 seconds left. Here's the trick: do complete vertical runs. When you get to the top/bottom, turn a bit then do up/down again, like mowing a lawn. Careful! If your "swath" is too close to the last one it wont count. The trick is finding the perfect left/right distance to move.
Animators: Again, attack as they come out of the gate. It's much easier to arrange for these guys to hit each other with their blasts, since the bolts don't "expire" as the saws do. They move faster, and have wider reach with their weapons.
Mindchamber: If you've stockpiled bombs, now's not a bad time to use some, since it seems you max out on 9. Otherwise, jump A LOT and try to get his own missiles to hit him. His minions will also catch him in the crossfire if you move a lot. Don't be afraid to take a whack at him with your melee either, if you get close to him. I find it a lot easier to deal with him once the minions are dead: it's not hard to kill him like PG.
Code thing: Once you figure it out, hooray. Free health! Try to collect the last health token near one of the doors on the edge so you can attack the mods quickly when they come out.
Mods: Since Afro and Sard appaear on the edges, it's extremely easy to corner one and beat the shit out of him while the other takes his sweet ole time meandering over. Jump the remainder's ban and button mash him to hell. When the three-wave comes, it's a wee bit harder... but you;ll find it's much like all the rest of the three-wave crap you've dealt with over time.
Stamper & Jeff: They're actually pretty easy, it just takes patience. Stamper is your biggest problem when he's on foot: he's fast and counters excellently. Try to hit him as soon as he emerges from the door, I'm pretty sure he comes out the right side. When he's a balloon, it's child's play. Keep away from Jeff's fireballs and work on knocking Stamper around. Once you get confident, you can take a smack at Jeff once in a while but do so only when Stamper is hovering far away so you don't get trapped by his... pink fart bubbles? Once Stamper is down, button mashing Jeff is pretty easy.
Wadedolf: Well, the key here is avoidance. Don't bother trying to fight zombies. Instead, try and move to the top and bottom to group them together so you can run around them easier when you need to. Try not to get in FRONT of Wade, which is easier said than done. He can knock you down then triple-quadruple shot you with the laz0r, which will rape you nicely. Bomb the shit out of Wade. Often he'll laz0r and you'll be able to get around him. Put a bomb up his ass!
Hope this helps any strugglers!
