In this video, I cover getting all the Teensies and Cups for the "Breathing Fire!" boss level of "Teensies in Trouble".
1:05 - If you aim straight up and are at the left edge of the platform, you can attack and defeat the first phase of the boss a little earlier than perhaps it was intended.
1:25 - I think it's quite cool that the Mario costume for Rayman does flight via the winged cap. Another nice little detail.
2:02 - I somehow accidentally missed the hanging hook, but if you catch it, it will fall slowly and will lead you to a good point to jump off of in order to get the Teensy. If you jump too early, you'll end up on the higher platform and likely will miss the Teensy.