There are a few sound effects taken from Yugioh DM, GX, and 5D's: LP counter when the cursor is moved, monster summoning when an application is opened, monster destruction when an application is closed, and flipping a set card when the DS is opened from sleep mode or a folder is created (plus more miscellaneous things).
Top screen image may be from Vrains season 2, but I can't recall the exact point it's from. Bottom screen image is a recolor of the link monster card frame. BGM is season 3's OP.

KIMERU - calling