I got at the moment a super gadget geek : the’Arcade-Nano Edition Sonic. What is that thing? Well it's a mini arcade stick key chains containing a megadrive emulator games with Sonic the Hedgehog 1 & 2, Sonic the Spinball et Sonic 3D Blast. Sold a few dozen euros, it is a plastic toy a little cheap (it's been a little happy meal toy), fair to emulation (50hz, slow music) but I find so cool A good solution in case of crisis “sonicite Aigue” sudden! Note that there 2 Other versions of this “thingy” with a version Columns (Columns, Columns III, Flicky, Arrow Flash, Dr. Robotnik's) and a version Virtua Fighter 2 (Virtua Fighter 2, Shinobi III, Golden Axe, Golden Axe III, Alien Storm).
For those interested in these little junk, know that I ordered mine in gamesbasement.co.uk and he arrived 3 days after my order.