I found it quite fun. Feels weird that you can't really shoot the gun without trying to use the scope first. Would've liked it if I could shoot regardless. The card mechanic with the fire is cool and I like how you integrated it with the movement.
Thank you so much! I implemented the "unstable" theme in the shooting mechanic; right at the start, there's a text explaining that if you don't aim, you only have a 10% hit chance because the weapon is unstable.