Greetings, sir. I believe I could be of great assistance to you on your project. I am a professional singer, lyricist, guitarist and an audio engineer with more than 10 years or experience in those fields.
This sounds like an interesting task and I would gladly want to create those two tunes for you.
I have an idea for music already, since it's probably not a scary game, but meant for children, it should have a simple, yet catchy melody made of acoustic guitars, some light piano and light percussion, so it wouldn't distract the player from the game itself.
Those are my initial ideas, and if you like them, feel free to contact me here for further discussion, I would be very glad to work with you!
Best regards, Bojan