Up B:
Kung Fu Knee
KFM jumps in a set arc and kicks at the peak of his trajectory, which sends foes flying upwards. You can't control when the kick comes out, but you can angle it a little
Side B:
Triple Kung Fu Palm
Kung Fu Man strikes forward with his palm, if you press the B button again right as the hitbox comes out you can cancel into it into another B move including itself - upon the third side B press he unleashes an especially powerful blow that can't be cancelled
B:
Riot Crossover Jab
A very tricky command jab where KFM rushes forwards to choke like a certain yellow patriarch and, should he hit, begins morphing into all sorts of different characters from the game and performing their jabs. When B is pressed again it will go to a random, fully chargefforward Smash. Alternatively you can tap the joystick in a direction to do a random tilt for a less devistating finisher. It can, like most command grabs, be mashed out of by foes. The hitbox of this move only effects anyone caught in the command grab, so it leaves KFM vulnerable in a free-for-all or if it's mashed out of - this is with the exception of tilts or Smash attacks, which can still hit anyone.
Down B: Coding
A HUD menu that lets you increase and decrease certain stats. Each stat begins at 50 and can go up to 100 or down to 0. Each stat has a disadvantage that can be remedied by decreasing the stat.
speed = speeds you up, slows attacks down
weight = you become heavier, but jump lower
attack = you deal more damage, but less knockback
Final Smash:
F1
Easily the least climactic FS in the game, an F1 button appears on screen and is pressed - everyone except Kung Fu Man is suddenly in stumble and has very high damage, allowing KFM to choose how to follow up similar to Peach's Final Smash.