You're kind of just not playing it right. Just grab the fruits and it's clear. If any enemy gets after you, you get a limited shot that takes a bit of time to regenerate. You can also use large smashing objects like digdug to take them down, chains even, but you'll get crushed too.
I think you got a little confused with this one. LOL. it's a pretty simple game, that's kind of like pacman where you generally are supposed to just collect the fruit and finish.