Underground Labyrinth/Stage 17

Stage 17 is the seventeenth stage in Underground Labyrinth.
==Battleground==
*Infinite Mr. Angels spawn after 16.67 seconds500f, delay 6.67~10 seconds200f~300f.
*3 Mr. Angels spawn after 20 seconds600f, delay 1~2 seconds30f~60f.
*3 Heavenly Hippoes spawn after 30 seconds900f, delay 30~36.67 seconds900f~1,100f.
*3 Mr. Angels spawn after 40 seconds1,200f, delay 1~2 seconds30f~60f.
*3 Mr. Angels spawn after 60 seconds1,800f, delay 1~2 seconds30f~60f.
*5 Mr. Angels spawn after 80 seconds2,400f, delay 1~2 seconds30f~60f.
*2 Heavenly Hippoes spawn after 93.33 seconds2,800f, delay 23.33~30 seconds700f~900f.
*5 Mr. Angels spawn after 100 seconds3,000f, delay 1~2 seconds30f~60f.
*5 Mr. Angels spawn after 120 seconds3,600f, delay 1~2 seconds30f~60f.
==Strategy==
This stage can potentially catch you off guard, as Mr. Angel swarms can potentially be difficult to defeat. The solution isn't so easy either, as the best units, spammable area attackers, are likely goin to be useful later, meaning you should save them. 
One of the least useful of these attackers has to be The Flying Cat, as it's heavily outclassed typically, and here its weaken ability actually may see use.
==Reference==
*https://battlecats-db.com/stage/s33000-17.html
Category:Underground Labyrinth stages