Isaac finished GCN Bowser's Castle (v3.4) in 05:10.420, uploaded at 2018-04-29T14:41:56Z.
A41D15149A7D010F29D5CAD133B0F2DA214FC45D
SLOT0C-BDC43A8FB15ACE17782332980A607743921D5B01
Fastest Time Leaderboard - Fastest Lap Leaderboard
The ghost data can be downloaded at 05m10s4196331 Isaac.rkg.