I'm not voting for this one either, as it was mine, but there's some things I want to bring up.
The jump for the underwater hat in the snow can be easily made by standing at the very right edge of the floating platform. No run-up needed.
The underwater hat hidden under the icicle can be collected by running INTO the cave without jumping, and just flying down to it (given by the hint)
The hat in the first room was supposed to be collected by running from the room before it, jumping just before hitting the door, then using the height boost to reach the platform.
The hat in the last room was to be collected in a similar way, but with a mid-air morph as well.
The reason the elf was a one hit kill was because getting hurt normally caused the energy numbers to screw up (reason there was no harmful enemies, as your energy would appear to go up). There's actually 199 health there, but because I changed the numbers around, it looks like 100. If you would like to know how I did the ASM for this hack, I'll tell you, but some things I took from Impulsion which I don't want to be released just yet (reason it was locked from SMILE)
Here's a vid =)