Hey not a bad start! the mechanics are very easy to follow, and the ending does make me want to find out what is next! I like the teaser play of the wizard! I'm guessing there will be other characters.
Suggestions: maybe if you fail, give an option of +1 attack, OR +1 Defense if you keep the deck :). I don't know if having multiple characters in a party will be coming, but that would be amazeballs. Great Job!
Simplistic and addicting! Dunno if thats cause I'm a maths nerd, or cause its actually that awesome:D! Maybe ad a few pics of the different critters involved:)
I think in the interception, if you miss the pass, but the opposing receiver also misses, it shouldn't count as a miss, it should be a 'lost posession', and 'redo' in the skills test.
For the very last level, create a defensive front with 3 bank, and 1 navy behind them. Next choose to go after green or yellow. use the rockets to blow out the minefields, and advance on the flanks to avoid red's central defense.