All abilities are implemented.
There are four abilities at the start:
Whip - 2 silver damage, up to 2 range
Crossbow (Iron Bolts) - 2 damage, up to 6 range
Crossbow (Silver Bolts) - 2 silver damage, up to 6 range
Thwack - 2 damage, up to 2 range, pushes 4 spaces
In order to attack things you must be in the same column/row as them and have line of sight. Silver damage deals +1 damage to enemies vulnerable to silver.
When you switch from whip to crossbow, it allows you to increase the range of your attacks, but consumes bolts.