Tower Shot Part 1

Add this game-feel effect to my 2D game: Tower Shot — Muzzle Flash.

Reference scene (context only — map it onto my own characters and sizes):
A top-down tower defense lane. Art is pixel art; all sizes are screen pixels — scale them to your own sprites. Times are seconds, t = 0 is the moment the shot hits. The field is dark green grass (#1c261c with a faint 32px checker and small #2c4632 tufts) with a horizontal dirt path 52px tall (#4a3022, a #5a3a2a top edge and #3d261c bottom edge, a few pebbles). One tower stands on a 96×18px stone pad just above the path: 14×15 art pixels at 6px (about 84×90px) — a brown wooden body (#6b4a33/#3e2a1d), a cream band, and a mint #5BE3B0 crystal on top whose center is the firing point. Orange slimes (16×12 art pixels at 4px, about 64×48px, facing right) walk left-to-right along the path at 140px/s, 140px apart, hopping 5px three times a second, so one reaches the hit point (about 150px right of the tower) every second. When the shot hits, that slime is defeated: it flashes white, squashes flat to nothing over 0.06–0.2s, and 8 cream/tan squares puff out 10 → 48px and fade by 0.48s. The next slime keeps walking in.

The effect:
Fire at t = −0.15s. From −0.15 to −0.07s draw a flash at the crystal tip: let f go 1 → 0; …

The rest of this prompt — exact sizes, easing, colors and particle counts — and full prompts 2–6 are in the pack.