diff --git a/scrolling_tricks/Makefile b/scrolling_tricks/Makefile
index b467958..8f35efc 100644
--- a/scrolling_tricks/Makefile
+++ b/scrolling_tricks/Makefile
@@ -8,7 +8,7 @@ CFLAGS=-c99 -I$(NDK_INC) -DDEBUG
 all: xunlimited xlimited
 
 clean:
-	rm -f xunlimited xlimited hardware.o cop.o main.o
+	rm -f xunlimited xlimited *.o
 
 cop.o: cop.asm
 	$(ASM) $(ASM_FLAGS) -o $@ $<
diff --git a/scrolling_tricks/maps/Large.map b/scrolling_tricks/maps/Large.map
deleted file mode 100644
index 93985f4..0000000
Binary files a/scrolling_tricks/maps/Large.map and /dev/null differ
diff --git a/scrolling_tricks/maps/Large.map.info b/scrolling_tricks/maps/Large.map.info
deleted file mode 100644
index 1d19ce6..0000000
Binary files a/scrolling_tricks/maps/Large.map.info and /dev/null differ
diff --git a/scrolling_tricks/maps/Race.map b/scrolling_tricks/maps/Race.map
deleted file mode 100644
index 9f2f0ea..0000000
Binary files a/scrolling_tricks/maps/Race.map and /dev/null differ
diff --git a/scrolling_tricks/maps/Race.map.info b/scrolling_tricks/maps/Race.map.info
deleted file mode 100644
index 30e901e..0000000
Binary files a/scrolling_tricks/maps/Race.map.info and /dev/null differ
diff --git a/scrolling_tricks/maps/Readme b/scrolling_tricks/maps/Readme
deleted file mode 100644
index bdc7703..0000000
--- a/scrolling_tricks/maps/Readme
+++ /dev/null
@@ -1,11 +0,0 @@
-The demo programs don't load these PowerCrawler MAP Files but the
-corresponding RAW files which are in this directory as well. The 
-RAW files were created with the RAW-IO Saver included in the
-PowerCrawler package.
-
-----------------------------------------------------------------------------
-
-Die Demoprogramme laden nicht diese PowerCrawler MAP Dateien, sondern
-die entsprechenden RAW Dateien, die sich ebenfalls in diesem Verzeichnis
-befinden. Die RAW Dateien wurden mit dem RAW-IO Saver erzeugt, der Teil
-des PowerCrawler Paketes ist.
diff --git a/scrolling_tricks/maps/Readme.info b/scrolling_tricks/maps/Readme.info
deleted file mode 100644
index d47f14d..0000000
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diff --git a/scrolling_tricks/maps/Scroller.map b/scrolling_tricks/maps/Scroller.map
deleted file mode 100644
index 27381c0..0000000
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diff --git a/scrolling_tricks/maps/Scroller.map.info b/scrolling_tricks/maps/Scroller.map.info
deleted file mode 100644
index 246b719..0000000
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