# GBA Limitations

There's a lot of seemingly normal Rust code that you can't write when compiling
for the GBA.

I mean there's a lot of stuff that you _can_ write, but we don't wanna get
tripped up by assuming we can use something only to get stuck when it's missing.

We'll start the book by reviewing all the major things we don't have so that we
can avoid any surprises later.