Starting this thread for anyone who's interested in collecting/doing OGs2 sprite rips. I'll release one every few days, also taking requests.
These are ripped from the robot gallery or the weapon equipment screen, then cleaned up pixel by pixel as best I can. I don't use in game versions because there seems to be some kind of filter applied which makes them a bit blurrier (I'll double check this). Also some extremely large units may be harder to rip as there might be parts of the UI (health bars etc) covering up certain parts.
Valsione R - http://www.saint-ism.com/2013/01/valsione-r-super-robot-wars-ogs2-sprite-of-the-week/ Ashe - http://www.saint-ism.com/2013/01/exbein-ashe-super-robot-wars-ogs2-sprite-of-the-day/
Let's Play! SRWZ2 Hakai Hen - www.saint-ism.com/lets-play-super-robot-wars-z2/ SRW Z2 Saisei Hen - www.saint-ism.com/lets-play-super-robot-wars-z2-saisei-hen/