Just throwing it out there that runners in this wonderful game would be fun to see on the leaderboards and to figure out all those despawn tricks that could be utilized :) Depending on diffculty it could be from 25 to 40 minutes at least based on the runs i have done (Though only snes normal and easy run done for me). It being a beat em up, the tricks don't seem that massive gameplay wise but the game itself still offers a nice challenge every time you play it!

Come have a try at it :)