amazing first run through, upgrade system is an enjoyable break from random gear with random stats like most other games, but the replay value is next to none, entirely because every class has the same spells, you just restart with different base stats.
me at day 285: every level, every boss, every secret level, and the secret final boss beaten with 6 stars. and still not enough cash to get all the upgrades. needs tuning. Overall great game, compelling upgrades hilarious gameplay, 5/5 needs badges
I love that I can use proper building strategy and carefully manage which units I use for each stage depending on what I'm facing... or just all out zerg rush with a flood of mouse warriors. 5/5 for interesting levels, great upgrade system, and compelling gameplay
***FASTEST WAY TO MAKE MONEY***
Simply play the first level over and over, killing the single enemy in one hit with the starting gun.
Use all money earned to buy health, then more units, because having more health at the end of a round gives you more money!!
Have a full maxed team with loads of cash for weapons on level two!!
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To complete the game you not needs to buy all upgrades :)