I've got a really good one:
Do you remember the video from LIJI of the fun way to beat Dripix?
Yes, "infinite" bombs, I say "infinite" because it apears to you but it is a limitated number of bombs, but you can get as many as you want.
When you are in a bomb machine, with the granade in the floor but not taken yet, you just have to pick it up.
When you press the action buton to pick up a bomb, he'll try to pick it up, so, when you have pressed the acction key INMIDIATLY TAB him and then drop him.
You'll see that the number of bombs will increase in 1, but the bomb of the bomb machine will still at the same place.
Just repeat theese actions as many times as you want to have as many bombs as you want.