I also made a twin-stick shooter, so it's great to see other people's interpretation of the theme, applied to the same genre. Yours is actually really clever.
Suggestions:
- Monsters with blurred words until they're too close.
- Synonyms.
- Mode where the match word switches rapidly.
I managed to get a double-kill.
Check our game! https://cerosware.itch.io/one-stick-shooter