An SYN is an eel-like virus that can be found in Area 3 and the Lost Area. There may be two versions: The long SYN's that take many shots to destroy and appear several times in a row, and the short, four-shot ones that come in large groups. Their sounds are hihats, cymbals, and low-pitched claps in Area 3, and just hihats and synth-cymbals in Lost Area.
SYN charging its shot in Area 3.
Area 3[]
SYN's are red with green quills. Small SYN's appear in Layer Level 6 along with a Password Protector. The longer ones only appear three times in a row in Layer Level 7. This occurs for both regular Play Mode and Score Attack.
Lost Area[]
SYN's in the Lost Area are white with blue quills and orange cores. Both types appear here more frequently than those in Area 3
| Viruses in Rez | |
|---|---|
| Area 1 | CV-1 • IF5 • IV5-300 • LC • TM |
| Area 2 | BYP • CV-2 • FE1 • IG5 • STX • VT |
| Area 3 | CV-3 • ENQ • ET8 • S1 • SYN |
| Area 4 | CV-4 • FEO • H1 • SOH • Wall |
| Area 5 | ACK • BEL • BEL-DS • CR • ETX • Gate of Truth • IRSS-2050 • LF • TC-502 |
| Lost Area | CR • D5 • FE1 • LC • SYN • TM • Wall |