To gain very good xp... Get upgrades for XP skill and then play the first level. Make sure to put on sudden death, no magic, night and blind mode. Then, send one volley of troops from your fisrt spawn area to the enemies first spawn area. Send a second immiediatley after at the house in front of it. (North East) If you have high level of attack and XP you can get over 15000 xp in one round x)
For last level... Get a tank to start, after that throw in as many assault troops as you can because soon they will have tank too. Whenever possible, use anti-tank defense and mortar showers. Only use gas if you know for sure it won't backfire. Make sure that the only troops you use are assault because they own at taking the trenches and they can help to take down tanks faster with g-nades.
HOW TO GET HARD BADGE EASILY!
Get golden cart, Rocket 3, Spinny Hat, and 3 groupies. Take off and aim straight up. Right after you take off hold a handstand. Once engines run out do superman while turning to do a flip. After flip you are getting close to ground so do hangglider and hold up. Without holding you don't get points. If you have done all this correctly you will have a score of like 65000 or something. Rate + if this helped.
So I get to lvl 53 and I'm felling extremely bored by this point, I go and check another game and my progress does not save... WTF!!1!11!!!! !11!1!1!!!1111111!!!!! s.o.b.!!1!1!1!!1!!!!!!
I love the fact that it is quick restart. You don't have to click restart and listen to some stupid oh noes you died theme. You also don't have time to weep over it, its just a game! 5/5
For front wheelie use Letter F. He is almost always on his front wheel. For back wheelie use Mr.C. The way his bike is set up you can do back wheelie easily.