diff --git a/games/keen/Makefile b/games/keen/Makefile
index 66f270e5..943d7b0f 100644
--- a/games/keen/Makefile
+++ b/games/keen/Makefile
@@ -51,7 +51,7 @@ KEEN_MARS:	keen_mars.o
 	ld65 -o KEEN_MARS keen_mars.o -C ../../linker_scripts/apple2_2000.inc
 
 keen_mars.o:	keen_mars.s zp.inc hardware.inc \
-	maps/mars_map.gr.zx02
+	maps/mars_map.gr.zx02 graphics/parts.gr.zx02
 	ca65 -o keen_mars.o keen_mars.s -l keen_mars.lst
 
 ####
diff --git a/games/keen/graphics/Makefile b/games/keen/graphics/Makefile
index 6fb28fa5..5dbe76ad 100644
--- a/games/keen/graphics/Makefile
+++ b/games/keen/graphics/Makefile
@@ -10,7 +10,7 @@ PNG2GR = ../../../utils/gr-utils/png2gr
 PNG2SPRITES = ../../../utils/gr-utils/png2sprites
 HGR_SPRITE = ../../../utils/hgr-utils/hgr_make_sprite
 
-all:	keen1_title.hgr.zx02 level1_bg.gr.zx02
+all:	keen1_title.hgr.zx02 level1_bg.gr.zx02 parts.gr.zx02
 
 ####
 
@@ -33,6 +33,14 @@ level1_bg.gr.zx02:	level1_bg.gr
 level1_bg.gr:	level1_bg.png
 	$(PNG2GR) level1_bg.png level1_bg.gr
 
+####
+
+parts.gr.zx02:	parts.gr
+	$(ZX02) parts.gr parts.gr.zx02
+
+parts.gr:	parts.png
+	$(PNG2GR) parts.png parts.gr
+
 
 ####
 
diff --git a/games/keen/graphics/parts.png b/games/keen/graphics/parts.png
new file mode 100644
index 00000000..81180b99
Binary files /dev/null and b/games/keen/graphics/parts.png differ
diff --git a/games/keen/keen_mars.s b/games/keen/keen_mars.s
index d316356e..58b7ed1c 100644
--- a/games/keen/keen_mars.s
+++ b/games/keen/keen_mars.s
@@ -162,6 +162,8 @@ done_with_keen:
 
 mars_zx02:
 	.incbin	"maps/mars_map.gr.zx02"
+parts_zx02:
+	.incbin	"graphics/parts.gr.zx02"
 
 	.include	"text_print.s"
 	.include	"gr_offsets.s"
@@ -448,11 +450,7 @@ check_space:
 	bne	check_return
 space_pressed:
 
-
-;	lda	KEEN_JUMPING
-;	bne	done_keypress	; don't jump if already jumping
-
-	inc	LEVEL_OVER
+	jsr	do_action
 
 	jmp	done_keypress
 
@@ -461,7 +459,9 @@ check_return:
 	bne	check_escape
 
 return_pressed:
-	inc	LEVEL_OVER
+	;inc	LEVEL_OVER
+
+	jsr	do_action
 
 done_return:
 	jmp	no_keypress
@@ -526,3 +526,76 @@ feet_invalid:
 
 
 
+	;====================================
+	; show parts screen
+	;====================================
+do_parts:
+	lda	#<parts_zx02
+	sta	ZX0_src
+	lda	#>parts_zx02
+	sta	ZX0_src+1
+
+	lda	#$c    ; load to page $c00
+
+	jsr	full_decomp
+
+	jsr	gr_copy_to_current
+
+	jsr	page_flip
+
+	bit	TEXTGR
+
+	bit	KEYRESET
+parts_loop:
+	lda	KEYPRESS
+	bpl	parts_loop
+
+done_parts:
+	bit	KEYRESET
+
+	bit	FULLGR
+
+	lda	#<mars_zx02
+	sta	ZX0_src
+	lda	#>mars_zx02
+	sta	ZX0_src+1
+
+	lda	#$c    ; load to page $c00
+
+	jsr	full_decomp	; tail call
+
+	rts
+
+
+do_action:
+
+	lda	KEEN_X
+	cmp	#15
+	bcc	do_nothing	; blt
+
+	cmp	#20
+	bcc	maybe_ship
+
+	cmp	#35
+	bcs	maybe_exit
+
+do_nothing:
+	; TODO: make sound?
+	rts
+
+maybe_ship:
+
+
+	lda	KEEN_Y
+	cmp	#16
+	bcc	do_nothing
+	cmp	#24
+	bcs	do_nothing
+
+	jmp	do_parts	; tail call
+
+maybe_exit:
+
+	inc	LEVEL_OVER
+
+	rts
diff --git a/games/keen/print_help.s b/games/keen/print_help.s
index 35113863..10b98b89 100644
--- a/games/keen/print_help.s
+++ b/games/keen/print_help.s
@@ -1,4 +1,4 @@
-; For Help press ^H
+; For Help press H
 
 print_help:
 	bit	KEYRESET		; clear keyboard
@@ -31,9 +31,9 @@ help_text:
 .byte 0, 5,"CONTROLS:",0
 .byte 3, 6,   "A OR <-      : MOVE LEFT",0
 .byte 3, 7,   "D OR ->      : MOVE RIGHT",0
-.byte 3, 8,   "W OR UP      : ACTION, ENTER DOOR",0
-.byte 3, 9,   "SPACEBAR     : JUMP",0
-.byte 3,10,   "RETURN       : SHOOT LASER",0
+.byte 3, 8,   "P            : POGO",0
+.byte 3, 9,   "SPACEBAR     : ACTION/JUMP",0
+.byte 3,10,   "RETURN       : LASER",0
 .byte 3,12,   "ESC          : QUITS",0
 .byte 3,13,   "CONTROL-T    : TOGGLE SOUND",0
 .byte 3,14,   "J            : ENABLE JOYSTICK",0