I realized last night that you can pretty much cheat and get a higher score just by advancing through the levels in the Endless mode. See earlier yesterday I made it all the way to like level 37 before I messed up and it was over, well my high score was around 224,000+ so I beat my previous score of around 154,000+. But when I went to play again, you get to select what level you want to start on based on how far you have gotten. So I started on level 35 which is the highest level I could start, it seems the levels are based on increments of 5. And by doing that level, it showed that there was a 640,000 point bonus, which you get when you complete that level, level 35. So I completely that level and along with what I got doing that level I got around 648,000+ points for one round. I managed to get to level 47 before I messed up again and when I went back to the level select screen level 45 gives you like a 900,000 point bonus.
Also, it seems that you do not get those bonus points if you play normally from level 1 and up, because if that were the case I would have had a hell of a lot more points that 224,000+ when I "died" at level 37 that first time.