Controls

	Player 1	Player 2	Player 3	Player 4
Forward	Up	W	I	4(NUMPAD)
Reverse	Down	S	K	5(NUMPAD)
Turn Left	Left	A	J	6(NUMPAD)
Turn Right	Right	D	L	8(NUMPAD)
Fire	Ctrl	Spacebar	Alt	0(NUMPAD)

Since the app is old and unsigned you need to add a Java security exception before it'll run, and it likely only runs in IE. To add the Java security exception open 'Java Console' go to the Security tab and add https://zanderware.ca/ as an exception.