Stalker

List of Upgrades for Stalker-
 * Lv 5 : Cannon Upgrade (+95% this Ship Damage)
 * Lv 10 : Omega Guns (+30% All Omega Damage)
 * Lv 25 : Sol Omega (+7% Omega Attack Speed)
 * Lv 50 : Cannon Upgrade 2 (+455% this Ship Damage)
 * Lv 100 : Omega Fury (+15% Omega Critical Damage)
 * Lv 200 : Omega Guns 2 (+30% All Omega Damage)
 * Lv 400 : Omega Mastery (+2% Omega Critical Rate)
 * Lv 800 : Omega Guns 3 (+50% All Omega Damage)