The game is in fact Spelunker Z HD, for Playstation Vita. Famitsu also confirmed the game will support cross-play and cross-save between PS4 and PS Vita, where you can play with up to six players.
A collaboration for the game is also happening on May 31st, where you can get fragments of the Lara Croft and the Sun God familiar, from Lara Croft and Temple of Osiris. The final announcement was this month’s pet, Mike the cat.
Spelunker Z is set for a release on PS Vita May 21st, via the Playstation Network.