Here is a really big list of objects, sorted, and a few screenshots: (I'm surprised that all of them can load on mi!)
02 Ledge (from top)
03 Ledge, bottom only
04 Pit Fall?
05 door
06 Shadow
07 Platform
0C Ring
0D Animation (Vent?)
0E Time Bomb
0F Slig
10 Slog
11 Lever
13 Orb
15 Platform Rope
17 Well
18 Bomb
19 UBX
1C Portal
20 AI?
21 Step Switch
2D Slig AI
2E SligAIData
2F Level Changer?
30 Wheel/level/etc light
31 Mud
32 Something related to ledges
3C LCD Sign
3D Information
40 Stats Monitor (Escapees etc)
42 Teleporter related?
4F Wheel
51 Laughing Gas
52 Fling Slig
54 The-little-fleech-like-things-whose-name-I-forgot
55 Path Blocker (Slam Door)
56 Level loader?
58 Teleporter
5A Grinder
5B Colorful meter (like in the boiler)
5D Mine Car
5E Meat Sack
5F Explosion Set/Falling obstacles. (Mines Ender-like)
60 Platform Stop?
61 Light (Like on wheels)
62 Slap Lock
65 Fart Machine
67 Naked Slig
68 Slig Get Pants
69 Slig Get Wings
6A Greeter
6B Naked Slig Button
6E Tortured Mudokon
Notes about screenshots:
-Don't get too excited about the mine car! The mine car requires different and more complex collision maps. Just putting it in a random place will make it unable to move when Abe enters, and even worse, it will lock poor Abe inside! :O
-About greeter2.png: I made the greeter chase me, and he fell and got there. It was pretty funny, it even bounced a little when it landed (A bit too detailed for a feature which didn't get to the game, isn't it?
) I'm surely going to use this in a level design!