A bug: Sometimes, the run starts very slowly, and the speed of the ship the speed reduced to a quarter of normal. I think that losing multipliers and then dying causes the problem. Quitting to the menu solves it.
I can't use the combos properly for some reason. They just don't work. Also, the fact that they stay the same even though you redefine controls is stupid.
Unfortunately, English is not my native language. Therefore, I don't know the English name of many shapes, and I have to look them up, which is annoying.
The roller skate runner is actually different. It doesn't run, it roller skates. With it, you can go faster and jump farther, but you have less control over it.
For the hard medal, I used cruise missile, full fuel, level 3 ramp length and height, The Plank Mark II and H.I.G.H Tech. I also maxed the ramp angle, do it if you can. Go up with the cruise missile, and then start gliding, maintaining a speed around 230.
The ceiling in level 35 simply doesn't break. I passed that level in the past, but now I can't because no matter how many times I hit it, it doesn't break.