First level and boss done.
Avoid colliding with dead enemies (you can fall on them, resulting in 1 frame of no movement speed)
Avoid falling down from a platform instead of jumping off (1 frame of no movement speed instead)
Age 10~20 is hardest difficulty, 3 lives, 3 parasols ("ammo")/parasol symbol, 150 time, 1 rainbow length (a half circle), no ducking.
So I guess I need to restrict the ammount of parasol usages.