try shooting at the middle instead of the side of it it helps
2-4
3-4,2-4,2-4,4-2
2-3, 3-4, 3-4
5-4, 2-3, 3-6
It doesn't learn Bubble. It does, on the other hand, learn BubbleBeam, which it learns at level 25.
3-3 3-3 3-2 3-2 4-3
you do what you can
3-2 3-2 3-2 3-5 3-5 2-2
Study the level which means look at it and eventually you will beat it.
3-2, 3-2, 2-4, 2-4, 2-4, 2-5, 5-3
195
howdo you beat level 20 on go robts