diff --git a/boot.rom b/boot.rom
new file mode 100644
index 0000000..37ad1b6
Binary files /dev/null and b/boot.rom differ
diff --git a/makefile b/makefile
index 7e2c675..e007864 100644
--- a/makefile
+++ b/makefile
@@ -5,18 +5,16 @@ EMU_src=${CLI_src} src/devices/screen.c src/devices/controller.c src/devices/mou
 RELEASE_flags=-DNDEBUG -O2 -g0 -s
 DEBUG_flags=-std=c89 -D_POSIX_C_SOURCE=199309L -DDEBUG -Wall -Wno-unknown-pragmas -Wpedantic -Wshadow -Wextra -Werror=implicit-int -Werror=incompatible-pointer-types -Werror=int-conversion -Wvla -g -Og -fsanitize=address -fsanitize=undefined
 
-.PHONY: all debug dest rom run test install uninstall format clean
+.PHONY: all debug dest run test install uninstall format clean
 
 all: dest bin/uxnasm bin/uxncli bin/uxn11
 
 dest:
 	@ mkdir -p bin
-rom:
-	@ ./bin/uxnasm etc/screen.bounds.tal bin/res.rom
-run: all bin/uxnasm bin/uxncli bin/uxn11 rom
-	@ ./bin/uxn11 bin/res.rom
+run: all bin/uxnasm bin/uxncli bin/uxn11
+	@ ./bin/uxn11 
 test: bin/uxnasm bin/uxncli bin/uxn11
-	@ ./bin/uxnasm && ./bin/uxncli && ./bin/uxn11 && ./bin/uxnasm -v && ./bin/uxncli -v && ./bin/uxn11 -v
+	@ ./bin/uxnasm -v && ./bin/uxncli -v && ./bin/uxn11 -v
 	@ ./bin/uxnasm etc/opctest.tal bin/opctest.rom
 	@ ./bin/uxncli bin/opctest.rom
 install: bin/uxnasm bin/uxncli bin/uxn11
@@ -26,7 +24,7 @@ uninstall:
 format:
 	@ clang-format -i src/uxnasm.c src/uxncli.c src/uxn11.c src/devices/*
 clean:
-	@ rm -f bin/uxnasm bin/uxncli bin/uxn11 bin/polycat.rom bin/polycat.rom.sym
+	@ rm -fr bin
 
 bin/uxnasm: src/uxnasm.c
 	@ cc ${RELEASE_flags} ${CFLAGS} src/uxnasm.c -o bin/uxnasm
diff --git a/src/uxn11.c b/src/uxn11.c
index 6e91401..b52a95f 100644
--- a/src/uxn11.c
+++ b/src/uxn11.c
@@ -265,16 +265,14 @@ main(int argc, char **argv)
 {
 	Uxn u = {0};
 	int i = 1;
-	if(i == argc) {
-		fprintf(stdout, "usage: %s [-v] file.rom [args..]\n", argv[0]);
-		return 0;
-	}
-	if(argv[i][0] == '-' && argv[i][1] == 'v') {
-		fprintf(stdout, "Uxn11 - Varvara Emulator, 14 Feb 2023.\n");
+	char *rom;
+	if(i != argc && argv[i][0] == '-' && argv[i][1] == 'v') {
+		fprintf(stdout, "Uxn11 - Varvara Emulator, 22 Feb 2023.\n");
 		i++;
 	}
-	if(!system_boot(&u, (Uint8 *)calloc(0x10000 * RAM_PAGES, sizeof(Uint8)), argv[i++])) {
-		fprintf(stdout, "Could not boot.\n");
+	rom = i == argc ? "boot.rom" : argv[i++];
+	if(!system_boot(&u, (Uint8 *)calloc(0x10000 * RAM_PAGES, sizeof(Uint8)), rom)) {
+		fprintf(stdout, "usage: %s [-v] file.rom [args..]\n", argv[0]);
 		return 0;
 	}
 	if(!display_init()) {