A few feral cats in an ALGOL trenchcoat.

POP-2 is a small, stack-based programming language with ALGOL-like syntax that can be compiled for Uxn in under 800 lines of code and 2.5kb of memory. The language uses an explicit operand stack for evaluation, allowing values to be pushed and consumed across statements, and includes typical control structures like if/then/else and functions, but implements loops using GOTOs. It supports variables, arrays with pointer arithmetic, and I/O operations, making it elegant enough for embedded systems like Varvara.