: A major addition for handheld users, v5.2 natively supports 16:9 widescreen (416x240 resolution), filling the PSP's screen without stretching the original 4:3 sprites.

The 5.2 update introduced significant improvements over previous versions:

Objectively the best 2D beat ‘em up ever made, playable on one of the best handhelds ever made. The loading times are the only enemy you cannot punch.