This glitch was found a long time ago. This glitch requires vegeta and his big bang attack. The way it works is that you have one frame when flying from one screen to another and on that one frame you have control of your character. You can press the energy button as the text boxs appear vegeta will be charging his blast BUT will not be using his energy thus making the attack really strong.

This glitch is a slight time saver we havent fully test it but if you get good RNG with vegeta strength most of the time you wont be using this trick as it takes to much time to charge and wait for the text boxes. Also you can alternatively use the in games sleep mode to do this trick as well.