To get the hard badge you NEED to get enough for the parachute or rocket in the first day. If you don't, restart. Parachute is better because you can slowly descend and get coins. Avoid the flippers or whatever they are. The more time you spend in the air is multiplied by your height and how much coin you get. So the best formula for the most money is slow decent, high altitude, and coin. In other words: Parachute, rockets and launcher/band upgrades.
2/5. Completed both badges in about an hour. So-so game. My main complaint is no pause function. When on survival mode that is very VERY annoying. On regular mode, my only complaint is not knowing what to do in the boss fights. There are no instructions, so they take you by surprise and you have to restart the level if you fail. Stages 5 and 8 I had to redo because of this.
Another note, if you type 55+ wpm or more this game is an easy 60 points. It'll take you about an hour for both. I type 65-75 and it was cake. Slower typers will have a challenge getting the badges.
Survival Mode: Warrior (top center), cleric, archer, conjurer. Conjurer makes two more tanks next to the warrior and is the backup rezzer. Conjurer can also remove curses. Cleric heals and buffs. That 175% damage to buff on the archer makes it an easy win. Archer, main source of damage. His AOE is the key. Give him 10-20% lethality too, makes it easy. He's also a backup healer. On every X9 or X4 wave I left one enemy alive to get everyone fully buffed, healed, and full of energy. Pretty easy game, just time consuming.
Pretty easy. Once you get how to play (learning curve of about 2 minutes) it is pretty easy. I got all badges on first try. Basic strat at the end: Build all towers as the ion cannons. Save up until you can build 3 super soldiers. Use your special when they get close and you'll win soon after. Easy stuff.