I uploaded the same video as for 5 levels, since the first 4 levels have a great time, too. I played Q and P on keyboard as my controllers. First 4 levels run is 771 frames long, real time 12s 850ms. 1 extra frame starting screen, 3 continue screens are 5+5+32 frames long, 43 extra frames in total (42 for better math). In game time is 729 frames --> 12s 150ms. Feel free to retime if needed. Thanks for verifying.