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Illvelo, also named Illmatic Envelope, is a vertical shmup initially released for the NAOMI arcade system by MileStone Inc. in 2008. It's mostly noticeable for its trippy level backgrounds, bizarre sound effects and wacky enemy visual designs.
Also known as: イルベロ
Illvelo: Illmatic Envelope was released on June 11, 2008.
Illvelo: Illmatic Envelope is available on Arcade, Wii.
Illvelo: Illmatic Envelope was developed by MileStone Inc..
Illvelo: Illmatic Envelope is rated E by ESRB.