diff --git a/presentation/slides.fnl b/presentation/slides.fnl
index 9d9081e..60d67f9 100644
--- a/presentation/slides.fnl
+++ b/presentation/slides.fnl
@@ -130,24 +130,12 @@
       "2. What if I could preserve the current runtime state but rewrite the code?"
       "   ... even if the data has moved?"
       "3. What if I could interactively try out new code while my game was running?"]
-  [h "Digging Deeper: Assembler"
-     ** "Represent instructions using Fennel data literals"
-      (openfile :neuttower/defs.fnl {:split :right :line 57})
-      "  [:lda 0xff]"
-      "Represent labels with Fennel strings"
-      "  :loop [:bne :loop]"
-      "Lexical scope with nested blocks"
-      "  [:block :loop (generate-loop-code) [:bne :loop]]"]
   [h "Wait WTF Is An Assembler"
    ** "It's just converting mnemonics to bytes, right?"
       {:image "presentation/pics/assembly-markup.png" :justify :center :pause-after true}
       "Whoooops, actually the hard part is converting labels to addresses"
       "Zero-page instructions are a different size, which messes up data layout!"
-      "Initial pass is needed to gather all symbols to determine sizes"
-      "What about data?"
-      "  [:db 123] [:dw 12345] [:bytes \"HELLO WORLD\"] [:ref :hello]"
-      "Must be able to line up bytes on page boundaries"
-      "  [:align 0x100]"]
+      "Initial pass is needed to gather all symbols to determine sizes"]
   [h "The Tools"
    ** {:image "presentation/pics/retro-game-dev-quote.png" :justify :center :pause-after true}
       {:action #(files.reload :neuttower/game.json)}
@@ -174,12 +162,7 @@
    {:action #(files.reload :bitsy/game.json)}
    h "8-Bitsy"
    ** "Bitsy is a popular free, accessible, web-based game-making tool"
-   {:action boot-game :pause-after true}
-    (openview #(MapEditView) {:pause-after true})]
-  [(bgimg "presentation/pics/bitsy.png")
-   {:action #(files.reload :bitsy/game.json)}
-   h "8-Bitsy"
-   ** "Bitsy is a popular free, accessible, web-based game-making tool"
+   {:action boot-game}
       "Spring Lisp Game Jam - 10 days to hack"
       "Could I make my tools a little less... programmer-y?"
       (openview #(MapEditView) {:pause-after true})]