The Thursday Blitz Stage or Thursday Guerrilla Stage (ゲリラ木曜ステージ Gerira Mokuyō Sutējiharder) is a harder version of the regular Thursday Stages. Every time the player beats this stage, they will be rewarded with a Sniper the Cat.
- 20 Shibaliens spawn after 3.33 seconds100f, delay 5~10 seconds150f~300f.
- Infinite Shibaliens spawn after 6.67 seconds200f, delay 10~20 seconds300f~600f.
- 1 Maawth spawns after 30 seconds900f.
- 5 Helmut Krabbes spawn after 60 seconds1,800f, delay 40~60 seconds1,200f~1,800f.
- 5 Helmut Krabbes spawn after 66 seconds1,980f, delay 40~60 seconds1,200f~1,800f.
- When the base reaches 75% HP:
This level becomes much easier as you collect the Aqua Crystal/Plasma Crystal. It helps to have Castaway Cat, because he can essentially stunlock the LeMurrs, Phaces and Nimoy Bore, making the level very easy. Neo Psychocat also helps, but only against Nimoy Bore, due to that I.M. Phace outranges him by 1 (366 range vs. 365 range).
If you have no anti-Alien units, this level is not easy but is still beatable. It is highly recommended that you do have anti-Alien units, especially those who have a freeze or slow ability, along with at least 200% anti-Alien Treasures.