You get a Spitfire. In your hand, you are holding an aeroplane and shooting flames at zombies. You char them. You get out a minigun. You start shooting at the charred zombies. They die. You keep shooting. They are completely destroyed, leaving a skeleton. Nice concept!
We should be able to choose weapons, and not just auto-equip the 'best' one. For example, a fully upgraded Combat Shotgun is far better than an un-upgraded Gauss Rifle, and yet I still choose the Gauss Rifle...
Strategy Defense 1 and 2 are the only good ones; 3,4 and 5 are a completely different genre, and involve no strategy whatsoever unless playing on the highest difficulty.
If the resource increases and decreases (as in up/down arrows) were updated more than once a day, I'd be happy. It's annoying waiting until the next day before you see whether you made a good decision.
@Aurelium: Yeah, they do look like MapleStory earrings don't they? But I think that's the classic design. And lol at the 'Greg, Yes That Greg' as a name for my trainee.
Darkstars: For Challenge One, Valkyries and Mighty Guardians are good for pushing back the black goblins. In Challenge Two, use Shield/Invincibility right before the bomb blows up unless you want the screen to be blasted with ~11k damage (I think)
And, a random comment, when Popo gets close the the enemy castle to the point that every single one of his spikes hits the castle, something fun happens (like the castle going down really quickly).