During the Main Game, you can obtain medals. To obtain these medals, you must obtain a certain number of hits during the mission, listed below.

Medal	How to unlock
Aquas' Main Game Medal	Get 150+ hits.
Area 6's Main Game Medal	Get 300+ hits.
Bolse's Main Game Medal	Get 150+ hits.
Corneria's Main Game Medal	Get 150+ hits.
Fichina's Main Game Medal	Get 50+ hits.
Katina's Main Game Medal	Get 150+ hits.
Macbeth's Main Game Medal	Get 150+ hits.
Meteo's Main Game Medal	Get 200+ hits.
Sector X's Main Game Medal	Get 150+ hits.
Sector Y's Main Game Medal	Get 150+ hits.
Sector Z's Main Game Medal	Get 100+ hits.
Solar's Main Game Medal	Get 100+ hits.
Titania's Main Game Medal	Get 150+ hits.
Venom 1's Main Game Medal	Get 300+ hits.
Venom 2's Main Game Medal	Get 200+ hits.
Zoness's Main Game Medal	Get 250+ hits.