They are pretty much the one thing that I think needs to be changed. They take no skill to do, you just build up to level 3 and boom, 3 kills. All the other level 3's take SOME skill. Hell you can get no kills if you really screw it up. This is my one major hatred with the game. That is all.
PaRappa's Level 2 is 3 guaranteed kills.
Heihachi's comes close, or passes it.
Toro's is 2 at least a lot of the time.
Spike almost needs it.
They get LESS than EVERY OTHER level 3 EXCEPT Fat Princesses. They are honestly a terrible thing to go for. They're not a bad thing in the slightest.
Fresh to death