Trogdor: Let's Burninate Phonics
From Homestar Runner Wiki
Trogdor: Let's Burninate Phonics is a game created by the company Videlectrix. It is not playable; it is only shown in SBCG4AP Advertisement. It appears that the player plays as Trogdor, and apparently has to burninate letters shot by archers. One of the letters seen being burninated is a schwa. It seems to be loosely based on edutainment games for early video game systems.