Phineas and the gang celebrate Isabella's birthday in a big way, but all she really wants is some quiet time with Phineas. Meanwhile, Doofenshmirtz has installed his Bugs Me-Inator onto an evil bug bus and is driving around Danville turning all the things that bug him literally into bugs.
| Title | Happy Birthday, Isabella |
|---|---|
| Genres | Animation Comedy Family Sci-Fi & Fantasy |
| Release Date | 2013-07-12 |
| Episode Runtime | 00 Hours 12 Minutes |
| Season Number | 4 |
| Episode Number | 19 |
| Production Companies | Disney Television Animation, Disney Channel |
