For both badges: start a game with one enemy, challenging, 50 kills, and missiles on respawn. Use missile on lock and fire a bit for kill, then same with second missile, then chase - you can ram by holding shift and get plenty of kills that way.
Run Like Heck for the hard badge. Then basically run up the map, without flagging anything, collect ammo (always safe squares), then at the top turn around and come back, doing the flagging and trying to tempt stuff into mines. Use shotgun on wolves - try to get at least two with each shell. You get points for each square revealed including numbers off the edge of the map.
The highest rated post isn't right - speed is better than attack because it adds rage quicker and gives more time to react. EVERY stat/perk into speed, whenever you find an enemy you can't beat, fight once then practise fight grind for upgrade/level; first upgrade money jewel then XP jewel. Only use stun skill. Don't worry too much about the price increases, as the money drop increases a lot too - only thing to remember is to spend all money (upgrades / stones) before killing a boss, because inflation makes your savings worthless.
If you have linux you can install Chrome to get a newer flash player. Or with Chromium, it needs to have the pepper flash plugin. I haven't tried this yet, but it's a version 12 player so I don't see why it wouldn't work.
I'm going to have to give up on the Touchie Feelie award. I have no clue how to do it, what speed car, with what stats, on what map... the best I've managed is touching 21 out of 31.
There seems to be a hilarious bug in this game - if you move one of the three stats (e.g. boost) to 0% then keep moving the other two sliders up to max, they will both end up on max (giving you 80% instead of 60%). Just try it, if that explanation doesn't make sense...
As a tank I had trouble with 15 rather than 14 - until I remembered the whole secondary weapon thing that I hadn't used the whole game. Beretta gives you a range advantage on level 15 that helped win it.
Billshrill, sounds like the game is broken for you. You should be getting a ninja dash attack when you click. Try another browser/flash player update maybe?
OK, never mind there are a ton of levels you can do under par, and at least one you can do 4 under par. I got the badge on 2:18. Most important strategy is hitting wooden blocks with balls that bounce back off a wall into the same block.
OK, alternative to ragequitting - try in Internet Explorer. For some reason, the controls for this game work much better in IE (usually I have the opposite problem, where IE flash player controls suck).
I have to give up on this game when trying to do the time challenge on level 3. About 80% of the time the jump control doesn't respond on the first jump. Sometimes jumps will be a lot shorter even though I'm not doing anything different (holding down the button or tapping, no different). If the jump works, perhaps the character will continue moving in a direction when I let go of the arrow keys. Combine these with the tight time restrictions, and the fact you have to do "restart level" every time you fail because the clock doesn't reset, and this game is simply not playable. Maybe the subtle underlying story of the game is that it makes you want to be dead.
Finding it hard to work out which are the "easiest" ones - have tried a few and August 17th was very easy, but some others I have tried I got owned by.
A very easy impossible really. Use the "health" character. Always use shields to take care of the big red lattice things, but don't save them just for that - they recharge really quickly. Get used to pressing the "slow" button frequently, tapping it on and off to survive - this also helps recharge shield. Most of the difficulty is just being aware of which of your abilities are available at any one time.