Plants vs. Zombies Mini-Games - Invisi-ghoul

Apparently the Invisi-ghoul was a bigger challenge than I remembered...

As you expect, the Zombies are COMPLETELY invisible. You can only see them if just went into the water, or if you use an Ice-shroom.

After this, we go into what seems to be the EASIEST mini-game next to the one after said mini-game.

[rawr]

i guess the key is to guess and listen to what sound you hear when a pea its somthing
did really good nice job

[metroid]

Where's that motion sensor and pulse rifle when you need it?