new tutorial level for new mechanic

diff --git a/maps/ln_crossover.map b/maps/ln_crossover.map
new file mode 100644 (file)
index 0000000..57123e8
--- /dev/null
+++ b/maps/ln_crossover.map
@@ -0,0 +1,9 @@
+###############;
+####-#####-####;bb,aa
+##    ###    ##;
+##     #     ##;
+##     #     ##;
+##     #     ##;
+##    ###    ##;
+####+#####+####;aa,bb
+###############;