Time Machine 2: "Lunatic mode boss rush" /win cuts
Well, there is no official entrance to boss rush in lunatic difficulty, but you can always travel in time and just beat all bosses in a row :D
Basically it is 2nd clear for first 5 and 3rd clear of Veilac, so here is a lot of time I can save if I'll practice fighting them.
Suddenly, the most annoying boss was not as expected Veilac, but f*ckin dinosaur.
Total pure results: 2hours 12 min 03 sec, 292 deaths.