"Main Menu" is fun and sets the mood for the album nicely. "Lousy Ol Town" has a really lovely main piano melody -for me it changes the meaning of the title to be more sarcastic or fun rather than spiteful. Like, "yeah, it's my lousy ol town but it's still my home and I'll never admit it but I do kinda like being here I GUESS."
I like how you brought back the piano melody from "Main Menu" as a bass element in "Onward." This does kind of sound like crash bandicoot now that some other comment put that in my head lol. That's not a bad thing though - it's whimsical, fun, light in tone and fits pretty well with what you've described.
Some good feedback about mixing and variation in the comments, and I would definitely emphasize what Micerama said about a "run-on sentence" for "Main Menu." Less is more is a really important concept! The amount of rests you have is often just as important as the amount of notes. If the melody of your song just plays 1/4th notes or just 1/32nd notes the whole time, it's going to be pretty boring pretty quickly. But having a some sections that are really fast with slower/longer notes inbetween is how you really create impact. Music is nothing without context - when you let your elements build up, they grow more powerful when you finally let them loose. "Building up" can apply to 8 bars, an entire song, or two notes worth - that's the fun part for me; deciding how to strategically work in that really cool 3 seconds of noise that you made so that the rest of the song emphasizes it!
Regardless, awesome first submission and looking forward to what you bring to the table next time!