
There are 11 trinkets to get in this challenge(there are 20 trinkets in all).
The challenges are numbered from 1-11. A quick overview of all of them(difficulty is 0 for average, 1 for harder than usual, 2 for very hard, -1 for easy, -2 for very easy[impossible to die in]):
01: A challenge based on It's a Secret to Nobody.
Difficulty: 0
Compared to original: same
02: A challenge based on Trench Warfare.
Difficulty: 0
Compared to original: same
03: A challenge based on the first trinket in The Tower.
Difficulty: -1
Compared to original: easier
04: A challenge based on the second trinket in The Tower.
Difficulty: 1
Compared to original: same
05: A challenge based on the unnamed trinket in The Laboratory.
Difficulty: -2
Compared to original: easier
06: A challenge based on Purest Unobtainium.
Difficulty: 0
Compared to original: same
07: A challenge based on Young Man, It's Worth the Challenge.
Difficulty: 0
Compared to original: same
08: A challenge based on The Tantalizing Trinket/The Bernoulli Principle.
Difficulty: 1
Compared to original: harder
09: Veni Vidi Vici/DTTHW.

Difficulty: 2[So hard it uses Piercing The Sky.]
Compared to original...: ...harder. A lot harder.
10: Edge Games.
Difficulty: 1
Compared to original: easier.
11: Prize For The Reckless.
Difficulty: ......... .... ...-1.
Compared to original: easier.
?: A trinket you find in the hub. How to get it is a mystery.
??: A trinket... somewhere.

: The trinkets you get for completing this.
Happy trinket collecting! (Note: this shows up as "Trinket Challenge")
Updates:
Current version:
1.1:Custom Graphics! Download included with zip.. This is my first serious modification of a tileset. And 09 is back to its pre-1.0 state.
Previous versons:
1.0:Altered 09.
0.9:Fixed some glitches.
0.0:Released game.
Download latest version (0.9):