Every single boss in New Super Mario Bros Wii beaten with 4 players.
00:00 Larry Koopa #1
00:46 Larry Koopa #2
1:57 Roy Koopa #1
2:44 Roy Koopa #2
4:21 Lemmy Koopa #1
5:26 Lemmy Koopa #2
7:11 Wendy O. Koopa #1
8:07 Wendy O. Koopa #2
9:31 Bowser Jr. #1
10:36 Iggy Koopa #1
11:33 Iggy Koopa #2
13:04 Morton Koopa #1
13:54 Morton Koopa #2
15:13 Bowser Jr. #2
16:09 Ludwig von Koopa #1
17:06 Ludwig von Koopa #2
18:24 Kamek
19:34 Bowser Jr. #3
21:03 Bowser (final boss, ending, and credits)