All I.1.a.-Options

All I.1.a.-Options [Gravity, Charge, Varia]:

This section here is so far completely solved, except the Chainsaw-PB options that need to be worked over due to problems regarding actually getting both beams, Spazer and Plasma, turned on simultaneously, depending on other equipment!

In the case of having (E2, Charge, Gravity) Kraid, Phantoon and Ridley are no problems anymore. The remaining hurdles with their corresponding sets of (item-wise) minimal solutions are:

One either has to get past pre-Botwoon room or has to take the Botwoon-skip route, but for the latter case, Ice is required which already suffices to get past pre-Botwoon room. Thus, the Botwoon-skip route is irrelevant in this section, and we have:

(Speed), (E3), (Ice), (X-Ray, R.-Tank; [no E.-Tank up to this point]) as pre-Botwoon room´s local solvers, neglecting FlashSuit/BlueSuit options, since for BlueSuit either (Speed) or FlashSuit is needed, and FlashSuit can without Speedbooster only be obtained via CF which requires (E3), and both those options individually are already enough for that obstacle.

Minimal options for Zebetites & MB1:

Without Zebetite-skip: (4*M, 1*SM), (3*M, 2*SM), (2*M, 3*SM), (1*M, 5*SM)

With Zebetite-skip: (Ice, 2*M, 2*SM), (Ice, 1*M, 3*SM), (Ice, 4*M, 1*SM), (Speed, 2*M, 2*SM), (Speed, 1*M, 3*SM), (Speed, 4*M, 1*SM), (2*M, 2*SM; FlashSuit/BlueSuit [without Speed]) [for this last option here, no other ammunition combination is available, since a CF is then required anyways]

With Chainsaw-PBs: (2*M, 2*SM, Wave, Spazer, Plasma; *), (1*M, 3*SM, Wave, Spazer, Plasma; *), (4*M, 1*SM, Wave, Spazer, Plasma; *)

And for this section, the Zebetites are (due to Charge) the only place for application of Chainsaw-PBs, and in case of using those, even with just (1*PB), no Zebetite-skip is needed anymore, since for each Zebetite only 1 Chainsaw-PB and 1 Missile is needed; and the same holds for the [Gravity, Charge, no Varia] case.

Minimal options for Rainbow-Beam: (3*E.-Tank), (2*E.-Tank, 1*R.-Tank), (1*E.-Tank, 2*R.-Tank)

For the [Gravity, Charge, no Varia] section, the only difference to this section´s constraints is:

Minimal options for Rainbow-Beam in the [Gravity, Charge, no Varia] case:

(6*E.-Tank), (5*E.-Tank, 1*R.-Tank), (4*E.-Tank, 2*R.-Tank), (3*E.-Tank, 3*R.-Tank) [for this last option here, the R.-Tank in Maridia can be collected due to Gravity], (2*E.-Tank, 4*R.-Tank, E3) [via CF at Draygon], (2*E.-Tank, 4*R.-Tank, Speed).

Combining all these options, we get:

Gravity-Ice:

(Core+1*M+1*SM, Gravity, Ice, 2*E-Tank) ;

(Core+1*M+1*SM, Gravity, Ice, 1*E-Tank, 1*R-Tank) ;

(Core+1*M+1*SM, Gravity, Ice, 2*R-Tank) ;

(Core+2*SM, Gravity, Ice, 2*E-Tank) ;

(Core+2*SM, Gravity, Ice, 1*E-Tank, 1*R-Tank) ;

(Core+2*SM, Gravity, Ice, 2*R-Tank)

and 15%Gravity-Ice:

(Core+3*M, Gravity, Ice, 2*E-Tank) ;

(Core+3*M, Gravity, Ice, 1*E-Tank, 1*R-Tank) ;

(Core+3*M, Gravity, Ice, 2*R-Tank)

Gravity-Speed:

(Core+1*M+1*SM, Gravity, Speed, 2*E-Tank) ;

(Core+1*M+1*SM, Gravity, Speed, 1*E-Tank, 1*R-Tank) ;

(Core+1*M+1*SM, Gravity, Speed, 2*R-Tank) ;

(Core+2*SM, Gravity, Speed, 2*E-Tank) ;

(Core+2*SM, Gravity, Speed, 1*E-Tank, 1*R-Tank) ;

(Core+2*SM, Gravity, Speed, 2*R-Tank)

and 15%Gravity-Speed:

(Core+3*M, Gravity, Speed, 2*E-Tank) ;

(Core+3*M, Gravity, Speed, 1*E-Tank, 1*R-Tank) ;

(Core+3*M, Gravity, Speed, 2*R-Tank)

Gravity-Powerbomb:

(Core+1*M+1*SM+1*PB, Gravity, 2*E-Tank) ;

(Core+1*M+1*SM+1*PB, Gravity, 1*E-Tank, 1*R-Tank) ;

(Core+1*M+1*SM+1*PB, Gravity, 2*R-Tank)

15%Gravity-X-Ray-R-Tank:

(Core+3*M, Gravity, X-Ray, 1*E-Tank, 1*R-Tank) ;

(Core+3*M, Gravity, X-Ray, 2*R-Tank) ;

(Core+2*M+1*SM, Gravity, X-Ray, 1*E-Tank, 1*R-Tank) ;

(Core+2*M+1*SM, Gravity, X-Ray, 2*R-Tank) ;

(Core+1*M+2*SM, Gravity, X-Ray, 1*E-Tank, 1*R-Tank) ;

(Core+1*M+2*SM, Gravity, X-Ray, 2*R-Tank)

and 16%Gravity-X-Ray-R-Tank:

(Core+4*SM, Gravity, X-Ray, 1*E-Tank, 1*R-Tank) ;

(Core+4*SM, Gravity, X-Ray, 2*R-Tank)

and 17%Gravity-X-Ray-R-Tank with Chsw-PBs:

(Core+1*M+1*SM, Gravity, X-Ray, 1*E-Tank, 1*R-Tank, Wave, Spazer, Plasma; *) ;

(Core+1*M+1*SM, Gravity, X-Ray, 2*R-Tank, Wave, Spazer, Plasma; *) ;

(Core+2*SM, Gravity, X-Ray, 1*E-Tank, 1*R-Tank, Wave, Spazer, Plasma; *) ;

(Core+2*SM, Gravity, X-Ray, 2*R-Tank, Wave, Spazer, Plasma; *)

and 18%Gravity-X-Ray-R-Tank with Chsw-PBs:

(Core+3*M, Gravity, X-Ray, 1*E-Tank, 1*R-Tank, Wave, Spazer, Plasma; *) ;

(Core+3*M, Gravity, X-Ray, 2*R-Tank, Wave, Spazer, Plasma; *)