As the title suggests, this is a full 100% walkthrough of Crash Bandicoot 2. I play through the entire game from start to finish, and I collect every single gem and crystal on the way. No shortcuts are taken and all bonus room entrances are used. Both endings are shown.

0:00 Startup and intro
3:15 Turtle Woods (complete)
8:03 Snow Go (crystal & clear gem)
11:16 Hang Eight (complete)
15:54 The Pits (complete)
20:07 Crash Dash (complete)
23:20 Ripper Roo
25:58 Air Crash (bonus exit)
26:30 Snow Go (bonus entrance, red gem)
28:45 Snow Biz (complete)
33:28 Air Crash (crystal)
35:16 Beat It (complete)
37:07 Crash Crush (complete)
40:10 The Eel Deal (complete)
44:14 Komodo Bros.
46:14 Plant Food (complete)
49:38 Sewer Or Later (complete)
53:52 Bear Down (complete)
55:59 Air Crash (bonus entrance, clear gems)
1:00:50 Road To Ruin (crystal)
1:02:10 UnBearable (complete)
1:06:49 Totally Bear (complete)
1:09:06 Tiny Tiger
1:10:31 Hangin' Out (complete)
1:14:35 Totally Fly (complete)
1:17:28 Diggin' It (complete)
1:23:32 Road To Ruin (bonus entrance, clear gems)
1:27:49 Cold Hard Crash (complete)
1:33:54 Ruination (complete)
1:39:04 BeeHaving (complete)
1:44:27 N. Gin
1:46:45 Piston It Away (complete)
1:51:41 Rock It (complete)
1:54:16 Night Fight (complete)
1:58:08 Pack Attack (complete)
2:00:36 Spaced Out (crystal & box gem)
2:05:04 Dr. Neo Cortex & Normal Ending
2:08:13 Spaced Out (bonus gem)
2:10:57 100% Ending

This playthrough was done on an emulator with savestates between every level, so even though it looks like it, it's not a single segment run. I did this because the point of the video is to be a helpful and thorough guide and not a demonstration of skills. This video exceeds two hours and that means it's my longest serious video yet. It took nearly 12 hours to upload and process. Thanks for watching!