Phineas and Ferb are teleported into the past, with the museum's time machine, by Doof. Now, Doof wants to stop them from getting back.
Plot[]
The Past[]
(Doof): What's this? Those kids! I can trap them in the past!
He snuck into the time machine, setting it to automatically go to the past. Then he drained the battery.
(Phineas, after Doof left): Okay, guys. Over here's the big bone...
The machine sent them to the past.
World 1: Prehistory[]
When you get there, you are shot a long distance from the machine. You have a battery and a generator, though. You make a bike from found items, and hook it up to the generator. You have to ride the bike through a dinosaur-filled valley, fighting "enemies" (dinos) along the way.
Upon reaching the time machine, you try to go back to the present. Unfortunately, though, it turns out you only have enough to reach Biblical Times.
World 2: Biblical Times
Coming Soon...