Since years i play a very cool but not easy game with the unspokable name "Sqrxz". It is a Jump and Run with difficult puzzling and it makes so much fun. 4 parts are available.
Sqrxz is available for many many different platforms. Many of the ports are Homebrew. More infos are available here at Retroguru http://www.sqrxz.de
A Lynx port is missing ! What about a port for our lovely handheld ? Unfortunatley I am not a coder.