So cool... The ultimate Bill Gates stress relief!
Two tips...
1. For easy money, first tickle or throw grenades at your buddy. then, when you have enuf money, buy the God Power 'Explode on mouse' then equip it and blow the shit out of your buddy! (He wont get upset as easily because he's unconscious after the first BOOM!)
2. If Bill Gates has pissed you off, earn enuf money to buy a Bill Gates skin for your buddy. then proceed to blow him up as you please!