Here is Open Hexagon, an open source clone of "Super Hexagon by Terry Cavanagh".

You can also find Super Hexagon for the Pandora here: http://repo.openpandora.org/?page=detail&app=package.super_hexagon.apkenv.full

The version is the beta v2.0, online play doesn't seem possible, but local (offline) is working.

Note that there is a bug (an anoyance) that I haven't been able to fix: when restarting a level, a long pause can happens, and then the game unfreeze and is unplayable for a couple of second (and you loose).

The keys are mapped to Pandora ({X} to validate/switch, {B} to focus) and can be changed in config.json

History log
========
Build 02
------------
* Compatible with Firmware 1.62 and later
* If on earlier firmware, no need to update

Build 01
----------
* Initial build
* Key config for Pandora
* forced Fullscreen

A thread is open here: http://boards.openpandora.org/topic/17034-open-hexagon/