Mars Tower Defense

Mars Tower Defense.
Cute-ish TD game with a new twist - As towers get kills, they become cheaper to upgrade.  Upgrade now or later?
Too bad all in Jap, cannot toggle to English unlike the last Jap TD game...

review: http://jayisgames.com/archives/2009/05/mars_tower_defense.php
play: http://mogera.jp/gameplay?gid=gm0000000206

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