Collect all 9 trading cards on Peroxis and Muxxalon.
There are 9 trading cards in the high on life DLC package. You can check which ones you have by hitting
ESC and then going over to cards tab.
0:00 1/9 Barfazard
0:34 2/9 Dungmancer
1:28 3/9 Flukey
2:28 4/9 Humoranger
3:37 5/9 Pyrat
4:04 6/9 Ripsaur
5:21 7/9 Squealbur
6:26 8/9 Zenicow
7:10 9/9 Tadtwo