[quote name='Brak']Arcade mode. Some of the levels are in bullet-time.
However, I managed to do it in the story mode.
What I did was isolate an enemy in one of the corners and do the toss-up in the air combo thing, do it once more (in the air), land, wait for him to fall, and catch him with the toss-up combo again, and repeat.
You have to work on your timing, with that one.[/quote]
level 3, on the slide down with the rocket guys, you just get one up in the right corner of the screen and press up+x, up+x, up+x, up+x until it unlocks...