Here's my ideas for the Time Trial times for all the levels available to us. Based off of SHC17 demo, so Gene Gadget still has completion bug (in case that was updated).
GG 1 30" GG 2 1'00" GG B 55" RR 1 1'15" RR 2 1'45" RR B 55" SS 1 1'40" SS 2 1'15" SS B 1'00" DD 1 1'20" DD 2 1'20" DD B 1'05" VV 1 1'20" VV 2 1'00" VV B 25"
8GX4ZOGW49P - All available time trials open, Green Grove medals collected.
You should put your time trial times in this forum: https://ttjontt.wixsite.com/gamehut/forum/time-challenge-time