In the following dobutsu shogi position, is Gc3xc2 a bad move?
ABC
+---+
1| | g
2|lce|
3|E G|
4| L | *C
+---+
In the following dobutsu shogi position, is Gc3xc2 a bad move?
ABC
+---+
1| | g
2|lce|
3|E G|
4| L | *C
+---+
It's not a sacrifice, it's a trade after 1. Gxc2 G*b3 and taking the elephant on a3 next.
On the other hand, since doubutsu shogi is strongly solved, you can use an engine/tablebase (e.g. https://github.com/fuzxxl/dobutsu) to set up and see the solution anyway. (I haven't done this, though.)