Super Frog is definitely one of the best Platformers for the Amiga. I remember when it came out being hooked and playing it right through in a week. Amazing game with some great level design. You can definitely see a lot of Nintendo influences in it. Especially the levels with the bouncing around on the sprung buffers, and the levels with the swinging spiked balls reminded me a lot of a few different games. It also had really polished graphics.