Basically the idea is to have Bustar quite small, and then Extreme Adventures in a bigger font. Then coming off the text would be extreme sports activities going on like; skydiving, bungee, rock climbing, juggling, kayak, white water rafting etc. Looking for it to be extremely eye catching yet simple. The attached cartoon (just the person and balls) can also be put into one of the middle of the letters popping out as it is in the star below. 
 
The biggest thing is to make it look professional and unique. You do not have to use the cartoon. Font should be fun yet professional and look like adventure. 
 
Use your creativity. 
 
For more extreme sports ideas - search extreme sports on google

Bustar's Extreme Adventures