How to approach it
The night opens at wave 4 with 21 enemies arriving in 4 groups. The first group is 4 orbs coming in on a wide arc. There are no armoured hexagons in this wave. No raiders cross the screen. 1 enemy drops a capsule: 1 × rapid fire. On Normal you have three lives and one shield charge.
- Stay low and to one side while the groups fly in, then work across the formation from that side.
- A wave this size takes a while to clear — keep drifting so the orbs never get a still target.