I implemented the requested crosshair, furthermore if you target a meteoroid, the crosshair gets bigger.
Furthermore keep in mind, that Meteoroid3d supports C4A, an online score system!
So, if you don't have a C4A account yet, create one with the "Sparrow C4A Manager" (http://ziz.gp2x.de/downloads/Sparrow-C4A-Manager/Sparrow-C4A-Manager.opk
or direct download with the OPKManager). All you need is an internet connecton on your GCW.
When you play and there is a connection, it will submit your best score at game end. If there is no conneciton, the score is cached and can be submitted with the named Sparrow C4A Manager or the next time you exit Meteoroid3d with wifi enabled.
You can have a look at the highscore at this page http://c4a.openpandora.org/#/meteoroid3d
or with the Sparrow C4A Manager on your GCW.
Don't pass up the golden opportunity to kick some pandora users asses! :>