JMP $5edd <- this one

use only joy 2
a 941b lda $dc00  <- this one ***

change title screen keys
>9287 f7
>929b ef
>92b6 ff

change title screen
>9234 48 49 54 20 46 49 52 45
>921f 52 29 20
>922c 41 29 20


JMP $8e7e

a 941b lda $dbfe,x

how about:
a 941b lda $dc00  <- this one ***

keyscan routine
.C:943d   A0 07      LDY #$07
.C:943f   A9 7F      LDA #$7F
.C:9441   8D 00 DC   STA $DC00
.C:9444   AA         TAX
.C:9445   AD 01 DC   LDA $DC01
.C:9448   99 38 40   STA $4038,Y
.C:944b   8A         TXA
.C:944c   38         SEC
.C:944d   6A         ROR A
.C:944e   88         DEY
.C:944f   10 F0      BPL $9441
.C:9451   60         RTS

>9287 f7
>929b ef
>92b6 ff

deal with keypresses
.C:9286   A9 DF      LDA #$DF ;F3 - # players
.C:9288   A2 00      LDX #$00
.C:928a   20 54 94   JSR $9454
.C:928d   90 0B      BCC $929A
.C:928f   AD 28 40   LDA $4028
.C:9292   49 03      EOR #$03
.C:9294   20 C9 92   JSR $92C9
.C:9297   4C 5F 92   JMP $925F
.C:929a   A9 BF      LDA #$BF ;F5 - starting level
.C:929c   A2 00      LDX #$00
.C:929e   20 54 94   JSR $9454
.C:92a1   90 12      BCC $92B5
.C:92a3   AD 29 40   LDA $4029
.C:92a6   18         CLC
.C:92a7   69 01      ADC #$01
.C:92a9   C9 07      CMP #$07
.C:92ab   90 02      BCC $92AF
.C:92ad   A9 00      LDA #$00
.C:92af   20 DC 92   JSR $92DC
.C:92b2   4C 5F 92   JMP $925F
.C:92b5   A9 EF      LDA #$EF ;F1 - start game
.C:92b7   A2 00      LDX #$00
.C:92b9   20 54 94   JSR $9454
.C:92bc   B0 05      BCS $92C3
.C:92be   AD 26 40   LDA $4026
.C:92c1   F0 03      BEQ $92C6
.C:92c3   4C 16 8F   JMP $8F16


.C:940d   A9 00      LDA #$00
.C:940f   8D 02 DC   STA $DC02
.C:9412   8D 03 DC   STA $DC03
.C:9415   AD 01 40   LDA $4001
.C:9418   49 03      EOR #$03
.C:941a   AA         TAX
.C:941b   BD FF DB   LDA $DBFF,X **
.C:941e   49 1F      EOR #$1F
.C:9420   29 1F      AND #$1F
.C:9422   8D 26 40   STA $4026
.C:9425   A9 00      LDA #$00
.C:9427   A2 04      LDX #$04
.C:9429   4E 26 40   LSR $4026
.C:942c   2A         ROL A
.C:942d   CA         DEX
.C:942e   D0 F9      BNE $9429
.C:9430   8D 24 40   STA $4024
.C:9433   A9 FF      LDA #$FF
.C:9435   8D 02 DC   STA $DC02
.C:9438   A9 00      LDA #$00
.C:943a   8D 03 DC   STA $DC03
.C:943d   A0 07      LDY #$07
.C:943f   A9 7F      LDA #$7F
.C:9441   8D 00 DC   STA $DC00
.C:9444   AA         TAX
.C:9445   AD 01 DC   LDA $DC01
.C:9448   99 38 40   STA $4038,Y
.C:944b   8A         TXA
.C:944c   38         SEC
.C:944d   6A         ROR A
.C:944e   88         DEY
.C:944f   10 F0      BPL $9441
.C:9451   60         RTS

title screen
>C:0662  20 50 52 45  53 53 20 46    PRESS F
>C:066a  31 20 54 4f  20 53 54 41   1 TO STA
>C:0672  52 54 20 20  20 20 20 20   RT

      H  I  T     F  I  R  E
>9234 48 49 54 20 46 49 52 45
      
>921f 52 29 20
>922c 41 29 20

>C:06d2  20 20 20 20  32 20 50 4c       2 PL
>C:06da  41 59 45 52  20 20 20 20   AYER
>C:06e2  20 20 20 20  20 28 50 52        (PR
>C:06ea  45 53 53 20  46 33 29 20   ESS F3)

>C:0722  20 20 20 20  4c 45 56 45       LEVE
>C:072a  4c 20 20 20  20 20 20 20   L
>C:0732  20 20 20 20  20 28 50 52        (PR
>C:073a  45 53 53 20  46 35 29 20   ESS F5)